Make long work sessions more comfortable with the Master kerosene diesel air heater. This durable unit warms up to 2, 000 sq. ft. using efficient forced air and radiant heating technology, making it ideal for workshops, construction sites, and other wide areas. It employs a duo battery and electric cord power system and has a handle for easy transport. | Master Battery & Kerosene Diesel Air Heater - 80, 000 BTU - Yellow